hex wrench 1,material: staniless steel,alloy steel 2,SGS,ISO certification 3, ... 4.free sample name of commodity: ISO 2936 Hexagon socket wrench in hardware material: carbon steel,stainless steel surface finish:galvanize ... or as per the customer's demandswe can produce the wrench as per the customer's drawing.trade term: EX works ... MOQ: 100,000 pcs OEM welcome ISO 2936 Hexagon socket wrench in hardware